JavaFX: CSS variables

Question

I have four buttons that I want to style the same way except that each one of them has a unique image. there are three styles one for normal state and the others are for hover and focused states. Doing this in CSS which is the recommended way would take a lot of repetition, and I searched in the net and it seems variables are not supported in CSS. So is there a way around this, or would it be more pragmatic to do this in code.

caniuse.com/#feat=css-variables, developer.mozilla.org/en-US/docs/Web/CSS/Using_CSS_variables — Morpheus
– Morpheus, Commented Dec 29, 2016 at 14:07
If those 3 states that you mention for all 4 buttons are the same, you can use 3 simple selectors to specify that under a generic btn class. If you can share some code I could help you more. — George Antonakos
– George Antonakos, Commented Dec 29, 2016 at 14:15

Jon Uleis · Accepted Answer · 2016-12-29 14:16:52Z

1

Using CSS correctly will avoid repetition. You can share code between four buttons in one of a few ways.

Have the buttons share a class and style their differences:

<div id="btn1" class="button">Button 1</div>
<div id="btn2" class="button">Button 2</div>
<div id="btn3" class="button">Button 3</div>
<div id="btn4" class="button">Button 4</div>

<style>
    .button {
      color: blue;
      background: white;
      /* etc... */
    }

    #btn1 { background-image: url('uniqueimage1.png');
    #btn2 { background-image: url('uniqueimage2.png');
    /* etc... */
</style>

Or, less preferably...

Target multiple elements in one CSS rule:

<div id="btn1">Button 1</div>
<div id="btn2">Button 2</div>
<div id="btn3">Button 3</div>
<div id="btn4">Button 4</div>

<style>
    #btn1, #btn2, #btn3, #btn4 {
      color: blue;
      background: white;
      /* etc... */
    }

    #btn1 { background-image: url('uniqueimage1.png');
    #btn2 { background-image: url('uniqueimage2.png');
    /* etc... */
</style>

answered Dec 29, 2016 at 14:16

Jon Uleis

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2 Comments

fabian Over a year ago

It's a question about javafx, not about html!

Ayoub.A Over a year ago

Yes it is a question about javafx, but the answer works! even though if there is a better answer for javafx, it would be better

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